Investigation of Arc Erosion Performances of Two Copper-based Electrical Contact Materials

SUN Cai-xin1-3; WANG Jue1; YAN Ping1

doi:10.13296/j.1001-1609.hva.2012.01.018

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Investigation of Arc Erosion Performances of Two Copper-based Electrical Contact Materials

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- Investigation of Arc Erosion Performances of Two Copper-based Electrical Contact Materials
- High VoltageApparatus Vol. 48, Issue 1, Pages: 82-89(2012)
- 作者机构：
  
  1. 中国科学院电工研究所
  2. 中国科学院电力电子与电气驱动重点实验室
  3. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.01.018
  CLC： TM24
- Published：2012
- 稿件说明：
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[1]孙财新,王珏,严萍.两种铜基触头材料的电弧侵蚀性能研究[J].高压电器,2012,48(01):82-89.

SUN Cai-xin1-3, WANG Jue1, YAN Ping1. Investigation of Arc Erosion Performances of Two Copper-based Electrical Contact Materials[J]. High voltageapparatus, 2012, 48(1): 82-89.
[1]孙财新,王珏,严萍.两种铜基触头材料的电弧侵蚀性能研究[J].高压电器,2012,48(01):82-89. DOI： 10.13296/j.1001-1609.hva.2012.01.018.

SUN Cai-xin1-3, WANG Jue1, YAN Ping1. Investigation of Arc Erosion Performances of Two Copper-based Electrical Contact Materials[J]. High voltageapparatus, 2012, 48(1): 82-89. DOI： 10.13296/j.1001-1609.hva.2012.01.018.

摘要

电接触材料在工作过程中会受到机械磨损、环境腐蚀及电弧侵蚀

其中

电弧侵蚀对电接触材料影响最大

它是影响接触材料的电寿命和可靠性的最重要因素。笔者对采用熔渗法制备的CuCr50与电弧法制备的CuCr45电接触材料分别进行DC 50 V

20、30、40、50 A的电接触试验

并通过扫描电镜观察材料在电弧侵蚀后的形貌

对这两种材料在直流、阻性负载条件下的电弧侵蚀特征进行对比研究。结果表明

CuCr45与CurCr50在DC 50 V

20、30、40、50 A条件下

材料都由阳极向阴极转移;之后归纳出电弧侵蚀后两种材料的表面形貌特征

最后分析了两种材料的燃弧能量与熔焊力。

Abstract

Electrical contact tests were carried out under direct current 50 V and 20

50 A

respectively

for CuCr50 electrical contact materials which were fabricated by infiltration sintering and CuCr45 electrical contact materials which were fabricated by arc sintering.The morphologies of these two copper-based electrical contact materials after arc erosion were observed by means of scanning electronic microscopy（SEM）

and the electrical erosion performances of the two copper-based electrical contact materials under DC and resistance loads conditions were investigated.The results indicate that the material transfer is from anode to cathode under direct current 50 V and 20、30、40、50 A.In addition

the surface morphologies of CuCr45 and CuCr50 after arc erosion were classified

and the force of fusion welding and the power of burning arc were analyzed.

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College of Electrical Engineering and Automation,Henan Polytechnic University

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